关于JAVA的UDP,望大师指点~~~~

Question

就是如何能够把用JAVA做UDP的聊天内容保存起来,就是在下面的程序中加载这个功能> > > > > > 
package   myprojects.chat; 
import   java.awt.*; 
import   java.awt.event.*; 
import   java.net.*; 
class   Chat   extends   Frame{ 
      List   lst=new   List(6); 
    TextField   tfIP=new   TextField(15); 
TextField   tfData=new   TextField(20); 
DatagramSocket   ds=null; 
public   Chat(){ 
try{ds=new   DatagramSocket(3000);} 
catch(Exception   e) 
{e.printStackTrace();} 
this.add(lst, "Center "); 
Panel   p=new   Panel(); 
this.add(p, "North "); 
p.setLayout(new   BorderLayout()); 
p.add(tfIP, "West "); 
p.add(tfData, "East "); 
new   Thread(new   Runnable() 
{public   void   run() 
{byte   buf[]=new   byte[1024]; 
DatagramPacket   dp=new   DatagramPacket(buf,1024); 
int   i; 
i=10000; while(true){try{ds.receive(dp); 
                                lst.add(new   String(buf,0,dp.getLength())+ "from "+dp.getAddress().getHostAddress()+ ": "+dp.getPort(),i);} 
                      catch(Exception   e){if(!ds.isClosed()) 
                                                  {e.printStackTrace();} 
                                                } 
                                              } 
                                          } 
                          }).start(); 
tfData.addActionListener(new   ActionListener(){public   void   actionPerformed(ActionEvent   e) 
            {           byte   []   buf; 
                        buf   =   tfData.getText().getBytes(); 
                        try 
                                {DatagramPacket   dp=new   DatagramPacket(buf,buf.length,InetAddress.getByName(tfIP.getText()),3000); 
                                        ds.send(dp);} 
                      catch(Exception   ex) 
                                {ex.printStackTrace();} 
                          tfData.setText( " "); 
              } 
        }); 
addWindowListener(new   WindowAdapter() 
{public   void   windowClosing(WindowEvent   e) 
        {ds.close(); 
        dispose(); 
      System.exit(0);}   
}); 
  } 
public   static   void   main(String   args[]) 
            { 
                  System.out.println( "starting   chat "); 
                  Chat   mainFrame=new   Chat(); 
                  mainFrame.setSize(300,600); 
                  mainFrame.setTitle( "Chat "); 
                  mainFrame.setVisible(true); 
                  mainFrame.setResizable(false); 
                  } 
} 在线急等~~~望指点!!!!!

Answer 1

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Answer 2

被郭晨看到了，他会给你答案的了。他也要分社！